De Locomotief, 14 Oct 1952, city news: a Semarang meeting of the committee rejecting Government Regulation 19/52 on widows' pensions for civil servants with multiple wives draws great interest from women's organisations. Twelve bodies including SOBSI, Lekra, Pemuda Rakjat and Gerwis reject the law and decide to continu
De Locomotief, 17 Dec 1953: about a hundred women from seven Semarang associations, led by Perwari and including Gerwis, ride 40 becaks to the Governor's Office to petition for a marriage law securing women's legal position and for a freeze on the 1952 regulation giving pensions to second-to-fourth wives. A Gedung Rakj
Historia article (2018) on the 1953 women's campaign against Government Regulation 19/1952 giving civil-service pensions to all widows of polygynous officials, including the 17 Dec 1953 mass meeting at Deca Park attended by Gerwani and others. Context on the anti-polygamy movement.